Higher Order Squeezing and Higher Order Subpoissonian Photon Statistics in Intermediate States

TL;DR

This paper investigates higher order squeezing and sub-Poissonian photon statistics in various intermediate quantum states, demonstrating their controllability and independence, and providing simplified criteria for their observation.

Contribution

It applies simplified criteria to study higher order nonclassicality in intermediate states, revealing their independent nature and controllability of nonclassical features.

Findings

Intermediate states can satisfy higher order nonclassicality conditions.

The depth and region of nonclassicality are controllable via state parameters.

HOSPS and HOS are independent phenomena.

Abstract

Recently simpler criteria for the Hong-Mandel higher order squeezing (HOS) and higher order subpossonian photon statistics (HOSPS) are provided by us [Phys. Lett. A 374 (2010) 1009]. Here we have used these simplified criteria to study the possibilities of observing HOSPS and HOS in different intermediate states, such as generalized binomial state, hypergeometric state, negative binomial state and photon added coherent state. It is shown that these states may satisfy the condition of HOS and HOSPS. It is also shown that the depth and region of nonclassicality can be controlled by controlling various parameters related to intermediate states. Further, we have analyzed the mutual relationship between different signatures of higher order nonclassicality with reference to these intermediate states. We have observed that the generalized binomial state may show signature of HOSPS in absence of HOS. Earlier we have shown that NLVSS shows HOS in absence of HOSPS. Consequently it is established that the HOSPS and HOS of same order are independent phenomenon.